I have been studying alot and reading up on the Intranquil Spirit or I.S. Now I shall faithfully record my findings...
Just read the prayer carefully. It does all that. Even the part about the target humbly falling upon the caster's feet. It does everything in the prayer. Literally.
Now, it is a very minimalistic spell. Originating from Mexico if I am not mistaken. All you need is the prayer and:
Then plenty of damage can be done already. Although it is minimalistic it is an advanced spell in the sense, you as the magician will need a very focused mind. You need that to direct the spirit from hell to do what you desire it to.
Just hold the pink candle in one hand and the crucifix in the other and say the prayer.
Simple enough, but before doing the Intranquil Spirit spell. You MUST bathe in a strong protection bath. Obviously to protect you from the spirit. You do not want the spirit turning on you, trust me. It's not pleasant.
If you are obsessive you are more likely to be attacked by the spirit as well. Many people who cast the spell, say that they are able to feel what the target feels. Which is why you need a strong hyssop bath after you do the spell and do pray Psalm 51.
While being possessed by the spirit, DO NOT contact the target or you will ruin the spell. Do everything in your power to keep sane and quickly exorcise the I.S. spirit from you.
Do a reading to determine how many days would the spell need to be, in order to be efficient for the target. A very famous Hoodoo shop sells I.S. vigils, for a standard seven-day spell.
Some people have to burn a few I.S. vigils, saying the prayer every night until the light goes out, while others have done alot of damage to the target simply with just a 4-inch pink candle.
I say "damage" because the I.S. spell can be effectively used for revenge in a love situation. In which the magician avoids contact with the victim making the victim feel even worse and for the spell (torture) to continue.
Remember it is very important to focus your intent, because it is your intent that drives the spirit and determines when the spell will end. For example if you just wanted contact, it will end when the victim contacts you. If you want to be in a relationship again, it will end once the target and you have reconciled. (Some people just keep doing the I.S. spell even after contact to get what they want.)
The most basic way to do the spell is just with the prayer, a pink candle and a crucifix. There are other more fancier ways.
The use of I.S. oil is very common. Mixed with a controlling oil and the Hoodoo formula known as "Return To Me" then applied to the pink candle.
The I.S. oil is for the spirit itself, the controlling oil (I like to just put licorice roots in my pockets) helps making the spirit obey and the Return To Me is to return the victim to you. There should be no trouble in getting the spirit to obey because it is very cruel and will jump at any chance to torture people.
Now, because the spirit has a tendency to cause the targets to come back in an angry and short-tempered manner there is another method to do the I.S. spell. Some people do a honey-jar in conjunction with the spell. So that the target comes back in a love-sick manner and not angry, than if you were to do just the I.S. spell alone.
Some practitioners feel sweet work is at odds with the harsh torture the I.S. does, but I disagree. "Sweet torture and sweet sorrow" anyone? It is very possible to be tortured without being angry and the effects on the target are what is desired, longing for the caster, missing the caster desperately and being love-sick, wanting to be with the caster again with sweet thoughts. Sweet thoughts are better than bitter and angry thoughts which will make successful reconciliation difficult. (The I.S. tortures the target with constant thoughts of the caster and makes them unable to sleep in many cases, and will eventually cause depression to make the target vulnerable and emotional.)
Of course everybody's situation is different and just do a reading to see if you should do it with or without a honeyjar.
Another thing to know about the I.S. is that regarding targets, the more resistant they are, the harder they are hit, and the more cruel the I.S. spirit regards them. The I.S. does not care about the target and will do whatever it feels is needed to bring them back. It can break the strongest and bring most reluctant lovers back.